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UTCTL494 の電気的特性と機能

UTCTL494のメーカーはUnisonic Technologiesです、この部品の機能は「VOLTAGE MODE PWM CONTROL CIRCUIT」です。


製品の詳細 ( Datasheet PDF )

部品番号 UTCTL494
部品説明 VOLTAGE MODE PWM CONTROL CIRCUIT
メーカ Unisonic Technologies
ロゴ Unisonic Technologies ロゴ 




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UTCTL494 Datasheet, UTCTL494 PDF,ピン配置, 機能
UTCTL494 LINEAR INTEGRATED CIRCUIT
VOLTAGE MODE PWM CONTROL
CIRCUIT
DESCRIPTION
The UTC TL494 incorporates all the functions required in
the construction of a pulse-width modulation switching circuit.
Designed primarily for switching power supply control or DC-
DC convectors, it offers the systems engineer the flexibility to
tailor control circuitry to its own application.
SOP-16
FEATURES
*Complete PWM power control circuitry
*Uncommitted outputs for 200 mA sink or source current
*Output control selects single ended or push pull operation
*Internal circuitry prohibits double pulses over total range
*Easy synchronization
DIP-16
ABSOLUTE MAXIMUM RATINGS(Unless otherwise noted all is over operating free air temperature
range)
PARAMETER
Supply Voltage(note 1)
Amplifier Input Voltage
Collector Output Voltage
Collector Output Current
Continuous Total Dissipation at(or for below)
25°C Free Air Temperature(note 2)
Operating Temperature Range
Storage Temperature Range
Lead Temperature 1.6mm from Case for 60
Sec.
SYMBOL
VCC
VI
VO
ICO
PD
Topr
Tstg
Tcase
VALUE
41
VCC+0.3
41
250
1000
0 TO 70
-65 TO 150
300
UNIT
V
V
V
mA
mW
°C
°C
°C
note 1: All voltage values, except differential voltages are with respect to the network ground terminal.
note 2:For operation above 25°C free-air temperature, the dissipation derates with 9.2mW/°C.
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R103-004,A

1 Page





UTCTL494 pdf, ピン配列
UTCTL494 LINEAR INTEGRATED CIRCUIT
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
Standard Deviation of Frequency
All Values of Vcc CT, RT, TA
constant
10
%
Frequency Change with Voltage
Vcc=7v to 40V,Ta=25°C
0.1 %
Frequency Change with
Temperature
CT=0.01µF,RT=12k,TA=MIN
to MAX
12 %
Amplifier Section
Input Offset Voltage
Error
Vo(pin 3)=2.5V
2 10 mV
Input Offset Current
Vo(pin 3)=2.5V
25 250 nA
Input Bias Current
Vo(pin 3)=2.5V
0.2 1 µA
Common-Mode Input Voltage
Error
Vcc=7V to 40 V
-0.3 to
V
Range
Vcc-2
Open-Loop Voltage Amplification
Vo=3V, Vo=0.5V to 3.5V
70 95
dB
Unity-Gain Bandwidth
800 kHz
Common-Mode Rejection Ratio
Error
Vcc=40V,TA=25°C
65 80
dB
Output Sink Current(pin 3)
VID=-15mV to -5V
V(pin 3)=0.5V
0.3 0.7
mA
Output source Current(pin 3)
VID=15mV to -5V V(pin 3)=3.5V -2
mA
Output Section
Collector off-state current
VCE=40V,Vcc=40V
2 100 µA
Emitter off-state Current
VCC=VC=40V,VE=0
-100 µA
Collector -emitter Saturation
Common-
VE=0,Ic=200mA
1.1 1.3
V
Voltage
emitter
Emitter-
Vc=15V,IE=-200mA
1.5 2.5
Follower
Output Control Input Current
Vi=Vref
3.5 mA
Dead Time Control Section
Input bias (pin 4)
Vi=0 to 5.25V
-2 -10 µA
Maximum duty cycle, each output
VI(pin 40=0
45
%
Input threshold Voltage(pin 4)
Zero duty Cycle
3 3.3 V
Maximum duty cycle
0
PWM comparator Section
Input Threshold Voltage(pin 3)
Zero Duty cycle
4 4.5 V
Input Sink Current (pin 3)
Vpin 3= 0.7V
0.3 0.7
mA
Total Device
Standby Supply Current
Vcc=15V pin 6 at Vref,all other Inputs and
10 mA
outputs open
6
Vcc=40V
9 15
Average supply current
Vpin 4=2V
7.5 mA
Switching Characteristics,Ta=25°C
Output Voltage Rise Time
Common-emitter configuration
100 200 ns
Output Voltage Fall Time
25 100 ns
Output Voltage Rise Time
Emitter-follower configuration
100 200 ns
Output Voltage Fall Time
40 100 ns
note 1:All typical Values except for temperature coefficient are at Ta=25°C.
note 2:For conditions shown as MIN or MAX, use appropriate value under recommended operating conditions.
note 3:Duration of the short-circuit should not exceed one second.
UTC UNISONIC TECHNOLOGIES CO., LTD. 3
QW-R103-004,A


3Pages


UTCTL494 電子部品, 半導体
UTCTL494 LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
105 Vcc=15V
Ta=0~70¢XC
104 CT=0.001µF
CT=0.01µF
3
10
CT=0.1µF
102 CT=1µF
100
80
60
40
20
Vcc=15V
V=3V
Ta=25¢XC
101
103
104 105
RT(Timing Resistance) ( )
106
FIG 5. Oscillator Frequency and Frequency Variation
Vs
Timing Resistance
0
102
103 104
105
Frequency (Hz)
106
Fig.6 Amplifier Voltage Amplification
UTC UNISONIC TECHNOLOGIES CO., LTD. 6
QW-R103-004,A

6 Page



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部品番号部品説明メーカ
UTCTL494

VOLTAGE MODE PWM CONTROL CIRCUIT

Unisonic Technologies
Unisonic Technologies


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